Valve-grinding implement



Patented Apr. 18, 1922.

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TEXAS.

VALVE-GRINDING; IMPLEMENT.

Specification of Letters 'Ifatent,

. Patented. Apr.-1;8 1922.

Application filed March, 20, ;91 9, Serial No. {283336. 'nenewed Marc n14, 1922 sw rm; 43,7 44;

To all whom it may concern:

Be i'tknown that San -Antonio, in the county of BeX-ar and State of Texas, have invented certain new and useful Improvements in ValveGrinding'lmplements, of which the following is a specification.

I The present invention relates to means forrotating the valves of internal combus tionengines and the like when the same are being-groundtoefiecta proper seating action.

plemen-tof this cha motor and to the found tobe the 'mostfsatisfactory more Iiient of the valve without undue pressure on such valve, the device moreover being;

such that it can be satisfactorily operated by a comparativelyunskilled person. In the accompanying drawingi- Figure 1 is a vertical sectional view through the preferred embodiment the invention.

Figure '2 is a detail'view through the lower portion of the shaft and the valve engaging; element at right angles to Figure 1. I

Figure 3 is-adetail view of the valve engaging-element alone.

Similar reference numerals designate corresponding parts in all the figures of the drawings; 1 Y I In the embodiment illustrated a base is employed that is adapted to be placed uponthe, engine around the valve and will extend over the same. This base preferably consists of a ring 4 that rests upon the surface of the engine wall and is provided with upstanding spider arms '5 supporting a een;

tral bearing element6 having an axial bore- 7. The base is preferably a single piec'e casting and is of sufficient weight to rest firmly in position. v I

Journaled in; the element '6 of said base is a'sha'ftS, the inner end of which is slotted,

as shown at 9 to receive a reversible valve engaging element in the form ofa blade 10. One end of the blade is provided with I, lViLLiAMIS. ;H oon,' a' citizen of' the United" States, resid ng atis secured to the or other suitable 'wheel 15 that spaeed'spurs or prongs 11 adapted to en-L gage in the spaced openings orsockets formed in" on'e xwel'l knownform ofvalve; The opposite end of said valve provided with a curved "tapered edge- 712 "that is" adapted to engage intlie formed in another type 'of'valvei p I shaftflin' either'of its reverse positions by ing bolt 13f s -Secured tothe shaft 8 av set screw 14 device a bala nce or fly thus adjustable along the shaft; and this fly wheel constitutes, with the outer .end of the bearingelement 6, a thrust bearing for said shaft; "Preferably a .ball v bearing I6isyinterposed between the hub of the flywheel and-theelen1ent-'6','the latter being provided with'a recessed. seat 17 tha't' v 7' receives a bearing disk 18-, and th'e'fiy wheel having a recess 19", the bottom surfaceof which is borne against by the balls For the purpose of operating the'shaft' an actuatingbar 20 is employed havinga cent'ral' opening- 21" that; receives the outer portion'ofthe shaft, said bar b'eing' thus longitudinally slidable-upon said 7 flexible cord element 22, preferably a thong ofraw-hide or leather, has itsends passed througl'i openings-23 in theends of theba r' a suit able transverse h old- BY ivrnsnn ssremrnnrs, To V The blade 20 and knotted as, shown. at 241 This thong al solfp'asses through oneofa fpluralit'yjof V openings'25 formed in theout'er' portion of theshaft 8 atdifiere'nt distances from its outer end. v

' The mannerin 5 which the implementis used may be briefly outlined as flf'ollow's;

outer face off the valve Assuming that the to be ground is substantially flush with. V

the adjacent surrounding surface, the. 'ring his; placed upon said N centerofthe valve is in axial line with the shaft: 8, The set; screw, 1'4: is then loosened and the shaft moved inward-lyuntil the blade 10 is engaged with the fvalve the proper end of said blade; being" of course 7' surface so that the,

p acedoperative position. 7 When so en gaged'theset' screw 14. is again tightened. To'rotate the valve, thereforeyit is only necessary to reciprocate the bar 20, first 10tgiving a. slight rotation to theshaftSL The aivc rotation of the shaft in opposite directions, The longitudinal movement of the actuating bar and the strain transmitted to the shaft will cause said shaft to have an end thrust, but as will be evident, this is taken by the thrust bearing and the valve is relieved from the same. Consequently no undue pressure will be exerted upon said valve, though sufficient pressure can be obtained by a proper adjustment of the balance wheel 15 to secure the most effective grindin action. In case the valve is within the engine head, thering 4 is seated upon the outer face of the head and the shaft is moved inwardly sufficiently to engage the internal valve. In that case it is preferable to engage the flexible element 22 in the outermost opening 25, so as to properly space the actuating bar 20 from the fly wheel.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention, will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion and'minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Let ter Patent, is V 1. In a valve grinding implement, the combination with a supporting base adapted to extend over a valve, of a shaft journaledin the base, means on the inner end of the shaft for detachably engaging directly with the valve, an actuating device mounted to move longitudinally on the outer portion of the shaft, a flexible connection between the actuating devire'and shaft that wraps direetly uion the latter for effecting the rota tion of the same on the reciprocation of the actuating device, and a fly wheel carried by the shaft and constituting a thrust bearing therefor on the base to prevent undue lo n .tudinal movement of said shaft and consequent undue pressure upon the valve when the actuat device is operated.

'iding inplenient, the pporting Jase adapted *er a valve. of a shaft iournaled in the base, means on t 1e inner end of the shaft for detachably engaging directly with the valve, an actuating device mounted to move longitudinally ,on the outer portion of the shaft, a flexible connection between the actuating device and shaft that wraps directly upon the latter for effecting the rotation of the same on the reciprocation of the actuating device, a fly wheel carried by the with the valve and an effective grinding pressure upon said valve.

3. In a valve grinding implement, the combination with a supporting base comprising a rin upstanding spider arms carried thereby and bearing element supported by the spider arms, said ring beingv adapted to surround a valve to be ground,

of a shaft journaled in the bearing element and pro ect1ng within the spider, a valve,

engaging member carried by the inner end of the shaft, a 'fiy shaft, means for fixing ferent points along the shaft, a ball bearing interposed between the fly wheel and the bearing element and borne against by the fly wheel, and means carried by the outer portion of the shaft for effecting the rotation of said shaft successively in opposite directions. 1

t. In a valve grinding implement,- the combination with a base adapted to be placed over a valve, of a shaft journaled wheel mounted on the,

the fly wheel at (hf-- therein, a valve engaging element carried by v the inner end of the shaft, a thrust bearing between the shaft and base to prevent unduelongitudinal movement of the shaft, said thrust bearing being adjustable to permit the longitudinal. adjustment of the shaft in the base, an actuating device slidable on the shaft, a flexible member connected to the actuating device, and means for engaging said flexible member at different points on the outer portion of the shaft.

In ayalve grinding implement, the combination with a base adapted to be placed over a valve. of a shaft journaled therein, a alve engaging element carried by the inner end of the shaft, a thrust bean ing between the shaft and base to prevent t .din al adpi an actuating bar slidable on the po. Wn of the sh ft. and a flexible cord member having its ends connected to the ends of the bar, said shaft having openings at different distances from its outer end through which the cord is adapted to be passed.

In testimony whereof, I afiix my signat-ure.

WILIAM s. noon.

l movement of the shaft, 

